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OCR FSMQ Additional Maths 6th June 2016 Official Thread

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Reply 120

F3rnw3h

Original post by Zacken

If the angle is greater than 90, then what quadrant are you in? What sign does tangent have in that quadrant?

Ohh right, because Cosθ is positive, Tanθ has to be negative?

Reply 121

Zacken

Original post by Tasha_140

Ohh right, because Cosθ is positive, Tanθ has to be negative?

Well, because cos theta is positive and the angle is greater than 90 degrees means that it is in the fourth quadrant, and tangent is negative in the fourth quadrant.

Reply 122

F3rnw3h

Original post by Zacken

Well, because cos theta is positive and the angle is greater than 90 degrees means that it is in the fourth quadrant, and tangent is negative in the fourth quadrant.

But tangent would also be greater than 90 degrees if tanx = positive root 5/2
as one solution would be 228 degrees?

Reply 123

Zacken

Original post by Tasha_140

But tangent would also be greater than 90 degrees if tanx = positive root 5/2
as one solution would be 228 degrees?

Cosine is negative at 228 degrees.

Reply 124

kendo9

@Zacken I believe not everyone is taught the quadrant method. I'm happy that was how I learnt it because for me it is the easiest method :smile:

Reply 125

Zacken

Original post by kennethdcharles

@Zacken I believe not everyone is taught the quadrant method. I'm happy that was how I learnt it because for me it is the easiest method :smile:

I suppose - I'm just talking about it in terms of general intervals where the trig functions take on certain signs from any way that they were taught them, either from the quadrant method, graphs, power series, etc...

Reply 126

tmg1999

Hey guys - I have the thin revision guide for addmaths but I find it a little sparse on info in many areas. Can you recommend a better guide - There is one on TES, a Cgp one and a big one by illuminate publishing . Does anyone know which is best?

Here are links - MY ONE = https://www.amazon.co.uk/gp/aw/d/1444154753/ref=mp_s_a_1_2?qid=1464472395&sr=8-2&pi=SY200_QL40&keywords=ocr+additional+maths
CGP = https://www.amazon.co.uk/gp/aw/d/1847622976/ref=mp_s_a_1_1?qid=1464472354&sr=8-1&pi=AC_SX236_SY340_QL65&keywords=ocr+additional+maths
ILLUMINATE PUBLISHING = https://www.amazon.co.uk/gp/aw/d/1908682477/ref=mp_s_a_1_6?qid=1464472427&sr=8-6&pi=AC_SX236_SY340_QL65&keywords=ocr+additional+maths

Reply 127

TheOtherSide.

Original post by tmg1999

I don't know about the other two, but I've got the CGP one and it's pretty good at explaining things, though there aren't enough exercises for you to practice what you've learnt.

(edited 7 years ago)

Reply 128

kendo9

Original post by tmg1999

I highly recommend this textbook and practice book as a pair. Little costly, but very much worth it:
https://www.amazon.co.uk/Additional-Mathematics-OCR-Val-Hanrahan/dp/0340869607
https://www.amazon.co.uk/gp/aw/d/1444189506/ref=pd_aw_sim_14_1?ie=UTF8&dpID=51pSL6Y7SiL&dpSrc=sims&preST=_AC_UL130_SR130%2C130_&refRID=SXVRGE5CG2Y3JMRX59KC

Reply 129

TheOtherSide.

Original post by kennethdcharles

Our school gave us both of those already, and yep, they're really useful!

Reply 130

kendo9

Original post by TheOtherSide.

Our school gave us both of those already, and yep, they're really useful!

We were only given the first one, and I borrowed my friend's practice book. They really good!

Reply 131

tmg1999

Thanks guys - don't really need any more questions as have lots of past papers still to do - might go for the Cgp then as it looks like that will provide the best explanations .

Unless Anyone knows anything about the illustrate publications one?!

Reply 132

TheOtherSide.

Original post by kennethdcharles

We were only given the first one, and I borrowed my friend's practice book. They really good!

Yep!

How ready do you think you are for the exam now?

Reply 133

F3rnw3h

http://m.ebay.co.uk/sch/sis.html?_nkw=Additional+Mathematics+for+OCR+By+Val+Hanrahan&_itemId=121900735455&_trksid=p2056116.m4099

We always use that one in school and it's super helpful! ^ Has many practice questions with answers at the back

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Reply 134

kendo9

Original post by TheOtherSide.

Yep!

How ready do you think you are for the exam now?

I'm as ready as I can be tbh. Just a few areas to look over, but I'm pretty confident I can get an A. What about you?

Reply 135

candol

Original post by kennethdcharles

@Zacken I believe not everyone is taught the quadrant method. I'm happy that was how I learnt it because for me it is the easiest method :smile:

Quite agree, the quadrant method is a bit of a teaching cop out. If you know the graphs, you can't go wrong

Reply 136

Vanilla Cupcake

I've done all the past papers, anyone know what else I should do to practise? I'm going to go over my mistakes and try and correct them but after that it'll probably still be a few days until the exam..

Reply 137

Cryptokyo

Original post by Vanilla Cupcake

I did OCR A-level Core 1 and Core 2 papers for extra practice but I omitted topics that were not in Add Maths. The questions are very similar.

(edited 7 years ago)

Reply 138

TheOtherSide.

Original post by kennethdcharles

I'm as ready as I can be tbh. Just a few areas to look over, but I'm pretty confident I can get an A. What about you?

Sounds good!

I haven't done much revision since study leave started, but I'm hoping to work more on the topics this half term, since I don't think I'm ready yet. Right now, I think I might just about scrape an A if I'm lucky, but I'd rather be more prepared for the exam.

I do really like how this FSMQ is helping me prepare more for Maths next year, though.